Question

我有一个带有五个标签的ViewPager。我想在单击按钮时替换片段。

public class TimelineFragment extends RootFragment {

    public TimelineFragment() {

    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(final LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        final View view = inflater.inflate(R.layout.tab_timeline, container, false);

        Button button = (Button) view.findViewById(R.id.button);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                AccountFragment accountFragment = new AccountFragment();
                FragmentTransaction transaction = getChildFragmentManager().beginTransaction();

                // Store the Fragment in stack
                transaction.replace(R.id.container_pager, accountFragment);
                transaction.addToBackStack(null);
                transaction.commit();

            }
        });

        return view;
    }
}

问题：单击按钮时，我们可以看到带有textview的新片段，但始终显示旧片段的按钮。为什么？

我遵循本教程：https://tausiq.wordpress.com/2014/06/06/android-multiple-fragments-stack-in-each-viewpager-tab/

Answer 1

试试这个;

button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View 
                FragmentManager ft = getSupportFragmentManager();
                ft.beginTransaction()

                        .replace(R.id.container_pager, new accountFragment())
                        .addToBackStack("Back")
                        .commit();
            }
        });

替换片段始终显示 - Android

1 个答案: